The focused to-do list
Your whole list can wait. The One Thing puts a single priority in front of you, so there is less choosing, less clutter and one clear next step.
The problem with lists
A long list asks you to compare urgency, effort and guilt before you can even begin. For many people—especially those with ADHD or dyslexia—that choice overload turns into task paralysis.
The One Thing makes the decision once. Then it lets the list disappear.
Thirty possible choices become one doable action.
A calmer way through the day
Focus
Your full list stays available without staying visible. Open the app and your current priority is already waiting—large, clear and impossible to confuse with the next twenty things.
The rest of the list is still there. It just is not asking for your attention.
Momentum
Complete a task and get a proper moment of reward—not an instant view of everything still undone. Personal rewards, celebration GIFs and simple progress turn completion into momentum.
Accessibility
OpenDyslexic support, generous spacing and a deliberately quiet interface reduce the work of reading and choosing. The most important accessibility feature is often simply showing less.
Reading preferences
“Built by a dyslexic developer who needed a calmer way to get things done.”
Fast in, focused out
Add a task the moment it appears, then return to what matters. No projects, labels or filing system required before you can move on.
Try it in your browser →
Your list, available to your assistant
Connect The One Thing to Claude, Codex or another OAuth-compatible MCP client. Your assistant can see the tasks you authorise, add new ones, update priorities and complete work with you.
https://mcp.theonethingapp.com Secure OAuth login · Revocable access · Your password is never shared with the AI client
Using The One Thingadd_task · priority 1
IndependentBuilt from lived experience
The One Thing began because a dyslexic developer needed a to-do app that did not turn planning into another task. It is designed by Tom, built by Dan and shaped around one stubbornly simple belief: the tool should carry the cognitive load, not you.
Simple, transparent plans
No feature maze. The free plan gives you the complete one-task-at-a-time experience.
Free
£0 forever
A complete calmer task list, with room for ten active things.
One Thing Pro
Local pricing shown before purchase
For people who want an unlimited list and more control behind the focus view.
Good to know
Still wondering whether it fits your brain? Start free and let one real task answer that.
Most to-do apps show you the whole list and ask you to choose again every time you open them. The One Thing keeps your list in the background and shows only your current priority, so you can spend less energy choosing and more energy doing.
It was designed with neurodivergent users in mind. The interface reduces visual clutter, offers OpenDyslexic font support and keeps the number of visible decisions deliberately low. Many people find that one clear task feels easier to start than a long, busy list.
Yes. The free plan supports up to 10 active tasks and unlimited completions. Pro unlocks unlimited active tasks, editing, reordering, move-to-top and home-screen widgets. Current subscription pricing is always shown before purchase in the app.
The One Thing is available for iPhone and iPad, Android and the web. Your tasks stay in sync so your current priority is available wherever you are.
Yes. Its MCP server lets compatible assistants such as Claude list, add and complete tasks for you, protected by the same secure login as the app.
Your list can wait
Open the app, see the next step and let everything else go quiet.